NOT LISTED FOR SALE

315 Summerhill Ln Martinez, CA 94553

Estimated Value: $3,375,000 - $5,637,000

5 Beds
4.5 Baths
8,927 Sq Ft
$470/Sq Ft Est. Value

Last Sold December 24, 2020

Last sale price $3,000,000 $336 Per Sq Ft

Est. 40% increase in value since last sale

Current estimated payment $25,156/month

134 Days on Market

Highlights

  • In Ground Pool
  • Views of Carquinez Strait
  • Updated Kitchen
  • John Swett Elementary School Rated A-
  • Custom Home
  • 261,360 Sq Ft lot

About This Home

As of December 2020

Rare opportunity to own a beautifully remodeled estate, set upon a hilltop, with commanding views of Mt Diablo to the east, and the Carquinez Strait & San Francisco Bay to the west. This sophisticated and luxurious retreat reflects that magical merging of inspiration and architecture & is a masterpiece of design & craftsmanship: featuring beautiful hardwood floors, Calcutta marble bathrooms, crystal chandeliers throughout. The downstairs formal living spaces are adorned with beautiful wainscoting exuding magnificent architectural detailing. The opposing double stairway at ground level leads to an exposed upstairs walkway which transverses the downstairs living space, creating separation between an exquisitely designed master bedroom retreat & multiple second floor en-suite spaces. Cobblestone circular driveway, grand entrance, theater room, wine cellar, exercise room, multiple terraces, outdoor fireplace, 5-car garage, expansive grounds; pool, pool hse, outdoor kitchen are unfinished.

Last Agent to Sell the Property

Kevin C. Brown

Better Homes Realty License #00644175 Listed on: 04/28/2020

Better Homes Realty

Co-Listed By

David Sykes

Better Homes Realty License #01400006

Last Buyer's Agent

Parisa Samimi

Real Brokerage Technologies License #01858122

Real Brokerage Technologies

Home Details

Home Type

  • Single Family

Year Built

  • Built in 1991

Lot Details

  • 6 Acre Lot
  • Secluded Lot

Parking

  • 5 Car Direct Access Garage
  • Parking Lot

Property Views

  • Carquinez Strait
  • Panoramic
  • City Lights
  • Canyon
  • Ridge
  • Mount Diablo
  • Hills
  • Valley

Home Design

  • Custom Home
  • Raised Foundation
  • Composition Shingle Roof
  • Stone Siding
  • Stucco

Interior Spaces

  • 2-Story Property
  • Skylights
  • Stone Fireplace
  • Living Room with Fireplace
  • Dining Room with Fireplace
  • 4 Fireplaces

Kitchen

  • Updated Kitchen
  • Breakfast Area or Nook
  • Eat-In Kitchen
  • Built-In Double Oven
  • Gas Range
  • Microwave
  • Dishwasher
  • Kitchen Island
  • Stone Countertops

Flooring

  • Carpet
  • Tile

Bedrooms and Bathrooms

  • 5 Bedrooms
  • Fireplace in Primary Bedroom

Laundry

  • 220 Volts In Laundry
  • Washer and Dryer Hookup

Pool

  • In Ground Pool
  • Gunite Pool

Utilities

  • Cooling Available
  • Zoned Heating
  • Heating System Uses Natural Gas
  • 220 Volts in Kitchen

Community Details

  • No Home Owners Association
  • Alhambra Valley Subdivision

Listing and Financial Details

  • Assessor Parcel Number 3672400086

Home Details

Home Type

Single Family

Year Built

Built in 1991

Lot Details

0

Parking

5

Listing Details

  • Stories: 2
  • Year Built: 1991
  • Property Sub Type: Detached
  • Prop. Type: Residential
  • Co List Office Mls Id: SBCK01
  • Subdivision Name: Alhambra Valley
  • Directions: Reliez Valley-Chelsea-Summerhill
  • Architectural Style: Custom
  • Garage Yn: Yes
  • Unit Levels: Two Story
  • New Construction: No
  • remarks11: CALL LISTING AGENT BEFORE YOU ENTER-GATED COMMUNITY. This is a US government sale, owned by (and for purpose of making an offer) THE UNITED STATES OF AMERICA. ALL OFFERS MUST INCLUDE FULLY EXECUTED & SIGNED DOCUMENTS IN THE MLS-ASSOCIATED DOCS. Earnest Money Deposit submitted with all offers is 5% of the purchase price. There are no inspections & the property is to be sold in its “as is where is” condition & no improvements will be made. There is no warranty, express or implied, regarding the condition of the real or personal property and Better Homes Realty, Rockridge advises all buyers that they must perform their due diligence & make any & all inspections desired, except for destructive testing or any testing which will cause damage to the property. Buyer’s responsibility for due diligence to include, but is not limited to, checking city, county & public records, & verification of all square footage information.
  • remarks22: Kevin C Brown - 510-593-4780 - Rare opportunity to own a beautifully remodeled estate, set upon a hilltop, with commanding views of Mt Diablo to the east, and the Carquinez Strait & San Francisco Bay to the west. This sophisticated and luxurious retreat reflects that magical merging of inspiration and architecture & is a masterpiece of design & craftsmanship: featuring beautiful hardwood floors, Calcutta marble bathrooms, crystal chandeliers throughout. The downstairs formal living spaces are adorned with beautiful wainscoting exuding magnificent architectural detailing. The opposing double stairway at ground level leads to an exposed upstairs walkway which transverses the downstairs living space, creating separation between an exquisitely designed master bedroom retreat & multiple second floor en-suite spaces. Cobblestone circular driveway, grand entrance, theater room, wine cellar, exercise room, multiple terraces, outdoor fireplace, 5-car garage, expansive grounds; pool, pool hse, outdoor kitchen are unfinished.
  • Special Features: None

Interior Features

  • Flooring: Tile, Carpet, Other
  • Appliances: Dishwasher, Double Oven, Gas Range, Microwave, Oven, Refrigerator
  • Other Equipment: Other
  • Full Bathrooms: 4
  • Total Bedrooms: 5
  • Fireplace Features: Dining Room, Living Room, Master Bedroom, Stone, Other
  • Fireplaces: 4
  • Fireplace: Yes
  • Window Features: Skylight(s), Window Coverings
  • Room Kitchen Features: 220 Volt Outlet, Breakfast Nook, Counter - Solid Surface, Counter - Stone, Dishwasher, Double Oven, Eat In Kitchen, Gas Range/Cooktop, Island, Microwave, Oven Built-in, Pantry, Refrigerator, Skylight(s), Updated Kitchen, Other

Exterior Features

  • Roof: Composition Shingles
  • Lot Features: Premium Lot, Secluded
  • Pool Features: Gunite, In Ground, Other
  • Pool Private: Yes
  • View: Canyon, Carquinez, City Lights, Hills, Mt Diablo, Panoramic, Ridge, Valley
  • Construction Type: Stone, Stucco
  • Foundation Details: Raised, Other
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 5
  • Parking Features: Int Access From Garage, Other, Parking Lot

Utilities

  • Heating: Zoned, Natural Gas
  • Cooling: Ceiling Fan(s), New Construction Option
  • Laundry Features: 220 Volt Outlet, Gas Dryer Hookup, Hookups Only, Other
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electric: Other Solar, 220 Volts in Kitchen

Condo/Co-op/Association

  • Association: No

Schools

  • Senior High School District: Martinez (925) 335-5800

Lot Info

  • Lot Size Sq Ft: 261360
  • Parcel Number: 3672400086

Ownership History

Date Name Owned For Owner Type

Purchase Details

Closed on
Oct 15, 2020
Sold by
United States Of America
Bought by
Zermeno Juan Romo
Current Estimated Value
$4,197,757

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$2,000,000
Interest Rate
2.8%
Mortgage Type
New Conventional

Purchase Details

Closed on
Jan 8, 2015
Sold by
Bone Donald L
Bought by
Carpoff Jeffrey P and Carpoff Paulette
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
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List Price
Sold Price
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Purchase History

Date Buyer Sale Price Title Company
Zermeno Juan Romo $3,000,000 Ticor Title Company
Carpoff Jeffrey P $3,800,000 North American Title Co Inc
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Previous Owner Zermeno Juan Romo $2,000,000
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
06/16/2025 06/16/25 Off Market $3,000,000 -- --
02/04/2025 02/04/25 Off Market $3,000,000 -- --
12/24/2020 12/24/20 Sold $3,000,000 -4.3% $336 / Sq Ft
09/09/2020 09/09/20 Pending -- -- --
06/16/2020 06/16/20 For Sale $3,135,000 0.0% $351 / Sq Ft
05/21/2020 05/21/20 Pending -- -- --
04/28/2020 04/28/20 For Sale $3,135,000 -- $351 / Sq Ft
Source: Bay East Association of REALTORS®

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $38,466 $3,259,296 $1,082,432 $2,176,864
2024 $35,999 $3,183,624 $1,061,208 $2,122,416
2023 $35,999 $3,121,200 $1,040,400 $2,080,800
2022 $35,376 $3,060,000 $1,020,000 $2,040,000
2021 $34,889 $3,000,000 $1,000,000 $2,000,000
2019 $50,740 $4,338,848 $1,292,869 $3,045,979
2018 $47,961 $4,120,368 $1,267,519 $2,852,849
2017 $47,378 $4,035,109 $1,242,666 $2,792,443
2016 $42,996 $3,857,950 $1,218,300 $2,639,650
2015 $19,114 $1,692,188 $644,905 $1,047,283
2014 $18,808 $1,659,042 $632,273 $1,026,769
Source: Public Records

Agents Affiliated with this Home

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Map

Source: Bay East Association of REALTORS®

MLS Number: 40902720

Bay East Association of REALTORS®

APN: 367-240-008-6